A great little place in a new building, located in a quiet residential neighborhood close to a train station. Probably one of the best swimming pools I've seen in Bangkok. Close to a supermarket and several local restaurants, but about a 40 min train ride from downtown and main points of interest for visitors - keep this in mind if you plan to go out often.
The apartment itself is super clean, comfortable and well-appointed, although rather small - just enough for two people.
The best part was the host - she responds quickly, speaks great English and went an extra mile to put together a very useful manual for the apartment and the surrounding area (with pictures!).
Overall, a very pleasant stay since I wanted a nice place away from the busy center.